A Hairy, Scary Adventure on Spook Hill: with the Spook Hill Club in Bloomington, MN

This book takes twins, Andy and Anna, along with their best friend, Corky, on another great, magical adventure on Spook Hill. With their first adventure fresh in their minds, (or is it), they're ready for another adventure. A scary adventure? A hairy adventure? Perhaps a hairy, scary adventure? Who or what will they encounter next?